CPC Subgroup
C23C 10/46 of ferrous surfaces
Full Title
Solid state diffusion of only metal elements or silicon into metallic material surfaces > using solids, e.g. powders, pastes > Embedding in a powder mixture, i.e. pack cementation > only one element being diffused > Siliconising > of ferrous surfaces
Top Applicants
Top 10 applicants by patent filingsfor class C23, 2013–2023, worldwide · Source: EPO PATSTAT
- APPLIED MATERIALS US 10,596
- TOKYO ELECTRON JP 5,229
- LAM RESEARCH CORPORATION US 3,622
- NIPPON STEEL CORPORATION JP 3,171
- JFE STEEL JP 3,128
- ASM IP HOLDING NL 2,722
- ARCELORMITTAL LU 2,481
- TOKYO ELECTRON 2,359
- APPLIED MATERIALS 2,284
- CHINESE ACADEMY OF SCIENCES 2,110